Results 91 to 100 of about 6,114 (206)

Proposed Distributed Feedback Crystal Cavities for X-Ray Lasers [PDF]

open access: yes, 1975
The strong interest in the coherent generation and guiding of x rays is well known. Many papers have recently appeared treating different concepts of stimulated x-ray emissions, and x-ray guiding in thin films was achieved.
Elachi, C., Evans, G., Grunthaner, F.
core   +1 more source

Hydrogen sulfide adsorption by thermally treated cobalt (II)-exchanged NaX zeolite

open access: yesAdsorption Science & Technology, 2016
The faujasite framework structure and the morphological properties of Co 2+ -exchanged NaX zeolite were maintained when samples were treated at a temperature ≤600℃, but were distorted at higher temperature.
Hoai-Lam Tran   +3 more
doaj   +1 more source

Sistema de biossorção produzido a partir de biofilmes suportados em zeólito faujasite (FAU), processo para a obtenção e sua utilização na remoção de crómio hexavalente (Cr(VI)) [PDF]

open access: yes, 2007
A presente invenção refere-se a um sistema de biossorção composto por um biofilme bacteriano suportado em zeólitos sintéticos, com utilização em vários tipos de indústrias para remoção do crómio hexavalente, através da retenção dos iões metálicos no ...
Neves, I., Tavares, T.
core  

Characterization of a new iron-on-zeolite Y Fischer-Tropsch catalyst [PDF]

open access: yes, 1986
Iron pentacarbonyl adsorbed on dry Na-Y zeolite can be oxidized at subambient temperatures into Fe203 located in the zeolite supercages (catalyst I). When catalyst I is hydrogen reduced at 575 K most of the iron has agglomerated externally to the zeolite
Bein, Thomas   +2 more
core   +2 more sources

Removal of volatile organic compounds by heterogeneous ozonation on microporous synthetic alumina silicate [PDF]

open access: yes, 2012
A hybrid process combining adsorption and ozonation was examined as an alternative treatment for odorous volatile organic compounds (VOCs). Methyl ethyl ketone (MEK) was chosen to study the influence of operating parameters.
Brodu, Nicolas   +3 more
core   +4 more sources

Monitoring by in situ neutron diffraction of simultaneous dehydration and Ni2+ mobility in partially exchanged NaY zeolites [PDF]

open access: yes, 2016
International audiencePowder neutron diffraction is used to follow structural changes occurring during heat and vacuum assisted dehydration of 3 wt% nickel exchanged NaY.
André, Gilles   +5 more
core   +3 more sources

Síntese de zeólita do tipo faujasita a partir de um rejeito de caulim Synthesis of faujasite-type zeolite from kaolin waste

open access: yesCerâmica, 2012
Materiais zeolíticos foram sintetizados utilizando como fonte principal de silício e alumínio um rejeito industrial gerado durante o beneficiamento do caulim para cobertura de papel; o material de partida e as fases formadas como produtos de reação foram
E. A. Hildebrando   +3 more
doaj  

Photochemical and Photophysical Studies within Zeolites

open access: yesCHIMIA, 1992
In this article, we illustrate how one can utilize a zeolite matrix to control the photophysical and photochemical behavior of guest molecules included in them.
V. Ramamurthy
doaj   +2 more sources

Application of faujasite synthesized from illite to the removal of Cr3+ and Ni2+ from electroplating wastewater

open access: yesRevista Ion, 2013
The synthesis of faujasite type zeolite from an illite-rich raw material by an alkaline fusion step prior to hydrothermal treatment was investigated. The synthesis products were characterized by X-ray fluorescence, X-ray diffraction, scanning electron ...
Víctor Darío Contreras Niño   +3 more
doaj  

The static aging effect on the seedless synthesis of different ranges FAU-type zeolite Y at various factors

open access: yesIraqi Journal of Chemical and Petroleum Engineering, 2019
This work investigates generating of pure phase Faujasite-type zeolite Y at the ranges chosen for this study via a static aging step in the absence of seeds synthesis.
Sama M. Al-Jubouri
doaj   +1 more source

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